Botanical Papers. ' ' 191 



Caltha palustris Linn. Marsh marigold. 

 Common in low places. 

 Crucif erge : 



Brassica arvensis. Mustard. 



Only one plant was seen, on the Butte Creek|wagon-road, one mile east 

 of the Widow Dire's place (specimen^not native). 

 Lepidium intermedium Gray. Peppergrass. 



Dry places, yards, roadsides, etc. 

 Camelinia sativa Crantz. False flax. 

 Common. 

 Violaceae : 



Viola cucullata Gray. 



Common in valleys. 

 Viola sagittata Ait. Arrow-leaved violet. 



Common in damp places ( April 6 ) . 

 Viola delphinifolia. Blue violet. 



Common ( May 16 ) . 

 Viola rotundifolia Michx. Yellow violet. 

 Portulacaceas: 



Portulaca retuso Engelm. Purslane. 



Grows very profusely on dams and cultivated grounds. 

 Portulaca pilosa Linn. 



Common, but not so profuse as the species above. 

 Malvaceae : 



Malvastrum coccineum Gray. False mallow. 

 Linaceae : 



Linum sulcatum Ridell. Wild flax. 

 Dry soil; common (June 1). 

 Geraniacese. 



Oxalis corniculata Linn. Yellow wood-sorrel. 

 Common. 



Vitaceae. 



Vitis Eestivalis Michx. (same grape, var. bicolor, LeConte). 

 Sapindacese. 



Negundo aceroides Moench. Box-elder. 

 Common along streams. 

 Anacardiaceae. 



Rhus glabra Linn. Sumach. 



Rhus copallina Linn. Dwarf sumach. 



Rhus toxicodendron Linn. Poison-ivy. 



Rhus trilobata Nntt. (R. canadensis, var. trilobata, Gray). Sumach. 

 The four Rhus species above are very common. The poison-ivy is 

 found in the valleys, even away from the timber. 

 Leguminosae. 



Baptisia leucophsea Nutt. False indigo. 



Tephrosia virginiana Pres. Goat's-rue. 



Tephrosia ? 



Astragalus caryocarpus Ker. Ground plum ( May-June) . 



Astragalus pattensis Nutt. (May 14.) 



